If both Talend and Matillion use the ELT (Extract, Load, Transform) paradigm, this means that they are pushing the SQL transformation queries down into the warehouse. In that case, Atlan will automatically generate the lineage for these transformations by parsing those SQL statements extracted from the query history of the data warehouse. Lineage for the Extract and Load steps is not automated for Talend and Matillion, but it is supported for Fivetran.
However, if the transformation is happening outside the warehouse, Atlan will need access to the transformation queries to generate the lineage. This access can either be gained via a Git repository if being utilized or by sharing the queries or stored procedures in a shared location, such as an S3 bucket.
At present, Atlan does not support native Talend or Matillion objects such as data pipeline models.